Hi James,
On 2017-08-30 17:10, James Richters wrote:
From the above, it seems you implemented your own Arc() procedure. Is that
correct?
No, it's the Agg2D Arc Function:
http://www.crossgl.com/aggpas/documentation/#Arc
Could you try using my version of AggPas and see how that goes for you.
Yes I am using your version already
If there is a bug in ARC, I would like to resolve it.
I can supply a complete sample program if it would help. I would like to
resolve this as well, I'm very happy with AggPas for my application.
Please get a fpGUI repository update so you have the latest AggPas from
there. I found a bug in Agg_2D's Arc() implementation, and it didn't
match the documentation's sample output. Yet the Agg2D's Arc() worked
correctly.
Here is the commit log.
===============================
commit 3dfce61fd9a3abba7d8a3825b8fa677bb75907e0 (HEAD -> develop,
sourceforge/develop, github/develop)
Author: Graeme Geldenhuys <grae...@gmail.com>
Date: Wed Aug 30 19:43:19 2017 +0100
AggPas: agg_2D's Arc() implementation had parameters in the wrong
order.
If you compared the Agg2D vs the Agg_2D Arc() behaviour you would
see they
give different results. After this commit they generate the
same [correct] output.
src/corelib/render/software/agg_2D.pas | 2 +-
src/corelib/render/software/agg_arc.pas | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
===============================
Further I looked into the implementation details of Arc() and ArcTo().
They use totally different arc implementations. ArcTo() is based on a
bezier arc, whereas Arc() doesn't.
Regards,
Graeme
--
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/
My public PGP key: http://tinyurl.com/graeme-pgp
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